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Decomposition-resistant and weather-resistant colored polyvinyl chloride and its preparation method

A polyvinyl chloride and weather-resistant technology, applied in the field of polymers, can solve the problems of easy cracking of plastics, inability to be used in large-scale production and high price, and achieve the effect of enhancing decomposition resistance, coloring stability, and mechanical properties.

Active Publication Date: 2020-09-29
JILONG PLASTIC PROD JIANGSU CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, although some plastics made of polyvinyl chloride appearing on the market have the characteristics of cold resistance and toughness at a certain temperature, the degree is not perfect enough. If the temperature is lower, many plastics will be easily cracked.
In addition, the price of some related products produced by large foreign companies of nylon 6 is extremely high, while the products of domestic manufacturers have sacrificed some of the advantages of nylon 6 itself, or the product quality stability is not well controlled due to insufficient craftsmanship or technology. Can not be used in large-scale production, this technical invention is produced to effectively overcome the above-mentioned technical defects

Method used

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  • Decomposition-resistant and weather-resistant colored polyvinyl chloride and its preparation method

Examples

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preparation example Construction

[0029] A method for preparing the above-mentioned decomposition-resistant and weather-resistant colored polyvinyl chloride is characterized in that it comprises the following steps:

[0030] (1) Mix sodium polyacrylate, white carbon black, titanium dioxide, and inorganic pigments in a high-speed mixer for 5-10 minutes in proportion to prepare a composite toner;

[0031] (2) Weigh PVC, chloroprene rubber, polysulfide rubber, composite coloring agent, polydimethylsiloxane, plasticizer, antioxidant, lubricant according to the formula, and put them into the mixer for stirring 1-3 minutes to get mixed raw materials;

[0032] (3) Put the mixed raw material in step 2 and the mixing product in step 1 into a twin-screw extruder for reaction, and the material stays in the barrel for 1-2 minutes to obtain a reaction product. The twin-screw extruder The temperature of each zone is as follows: Zone 1 180-200℃, zone 2 200-220℃, zone 3 200-220℃, zone 4 200-220℃, zone 5 200-220℃, zone 6 200-...

Embodiment 1

[0035] Decomposition-resistant and weather-resistant colored polyvinyl chloride is characterized in that, in parts by mass, it includes the following raw materials: 100 parts of PVC, 7.5 parts of neoprene rubber, 7.5 parts of polysulfide rubber, 15 parts of composite coloring agent, polydimethylsiloxane 7.5 parts of alkanes, 3 parts of plasticizers, 2 parts of antioxidants, and 4 parts of lubricants.

[0036] The composite toner includes sodium polyacrylate, white carbon black, titanium dioxide, and inorganic pigments in a mass ratio of 100:50:30:50. The plasticizer is DOP. The molecular weight of the sodium polyacrylate is 6000. Described antioxidant is antioxidant 1010. Described lubricant is polyethylene wax.

[0037] A method for preparing the above-mentioned decomposition-resistant and weather-resistant colored polyvinyl chloride is characterized in that it comprises the following steps:

[0038] (1) Mix sodium polyacrylate, white carbon black, titanium dioxide, and i...

Embodiment 2

[0043] The decomposition-resistant and weather-resistant colored polyvinyl chloride is characterized in that, in parts by mass, it includes the following raw materials: 100 parts of PVC, 5 parts of neoprene rubber, 10 parts of polysulfide rubber, 10 parts of composite coloring agent, polydimethylsiloxane 10 parts of alkane, 2 parts of plasticizer, 3 parts of antioxidant, 2 parts of lubricant.

[0044]The composite toner includes sodium polyacrylate, white carbon black, titanium dioxide, and inorganic pigments in a mass ratio of 100:60:20:60. The plasticizer is DOP. The molecular weight of the sodium polyacrylate is 6000. Described antioxidant is antioxidant 1010. Described lubricant is polyethylene wax.

[0045] The preparation method is the same as in Example 1.

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Abstract

The invention discloses a decomposition-resistant and weather-resistant colored polyvinyl chloride and a preparation method thereof. The decomposition-resistant and weather-resistant colored polyvinyl chloride comprises the following raw materials: PVC, chloroprene rubber, polysulfide rubber, composite toner, poly Methylsiloxane, Plasticizer, Antioxidant, Lubricant. The decomposition-resistant and weather-resistant colored polyvinyl chloride of the present invention further improves the decomposition and weather resistance and mechanical properties by adding chloroprene rubber, polysulfide rubber, polydimethylsiloxane and PVC, and adding a composite coloring agent.

Description

technical field [0001] The invention belongs to the technical field of polymers, and in particular relates to a decomposition-resistant and weather-resistant colored polyvinyl chloride and a preparation method thereof. Background technique [0002] The main component of plastic is synthetic resin. The term resin was originally named after the lipids secreted by animals and plants, such as rosin, shellac, etc. At present, resin refers to a high polymer that has not been mixed with various additives. Polyvinyl chloride is a polyamide resin, which is currently used One of the most engineering plastics, its amide group is polar, and has a strong hydrogen bond in its structure, which makes polyvinyl chloride have a high melting point, good physical and mechanical properties and wear resistance And self-lubrication, these comprehensive characteristics are not available in other plastics. However, the impact strength of pure polyvinyl chloride is low, and this shortcoming is more...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/06C08L11/00C08L81/04C08L83/04C08L33/02C08K13/02C08K3/36C08K3/22B29C48/92
CPCC08L27/06C08L2205/035C08L2201/08C08K2003/2241C08L11/00C08L81/04C08L83/04C08L33/02C08K7/26C08K3/22C08K5/12C08K5/1345C08K13/04
Inventor 姜丽丽
Owner JILONG PLASTIC PROD JIANGSU CO LTD